Book Three: Change

"It's a big concept in Eastern philosophy. The idea of change, and this notion that nature is always changing and that's the only constant, that sort of principle. So we were attracted to it for that reason, and as Mike described, it's about dealing with the changes that happened in the world after Harmonic Convergence, so it seemed to fit."
— Bryan Konietzko explaining why Book Three is titled Change.[1]

As of May 8, 2014, the animation for Book Three had been completed by Studio Mir.[3] Production work for Book Three was officially completed on June 3, 2014.[4] The book debuted with the first three episodes airing on June 27, 2014. On July 24, it was announced that following the airing of "The Terror Within", the remaining five episodes of the book would be moved to online releases, including Nickelodeon's website.[5] The book concluded with the release of the last two episodes on August 22, 2014. Although the last five episodes were shown online exclusively for the book's initial run, they aired alongside the rest of Book Three: Change on Nicktoons starting October 6, 2014. It is followed by Book Four: Balance.